Borgwarner Ludwigsburg Gmbh

Robert Boschgmbh

Borgwarner Beru Systems Gmbh

Georg Rixecker

Ulrich Eisele

Thomas Wahl

Ralf Schmidt

Christian Pottiez

Bernd Last

Alexander Schenk

Uwe Glanz

Torsten Schremmer

Jochen Rager

Sabine Roesch

Benjamin Hagemann

Martin Sackmann

Petra Kuschel

Gudrun Oehler

Ulrich Hasenkox

Johannes Grabis

Frank Schnell

Alexander Bluthard

Steffen Polster

Joern Bohnenkamp

A method for controlling a corona ignition system in which a corona discharge is produced at an ignition electrode by exciting a resonating circuit with an AC voltage produced by a high-frequency generator. The AC voltage is adjusted to a target value depending on an operating state of the engine. Combustion onset is determined by evaluating an electrical variable of the resonating circuit and the target value of the AC voltage is reduced by a predefined value following a predefined number of engine cycles or a predefined operating period. The determined combustion onset is evaluated in one or more engine cycles. The target value for the momentary engine operating state is then increased if, by evaluation of the combustion onset, it is found that a predefined requirement is no longer met. Otherwise, the reduced target value is stored as a new target value for the momentary engine operating state.

Method for controlling a corona ignition system of a cyclically operating internal combustion engine

This disclosure relates to a glow plug connector for a sensor glow plug, comprising a housing made of plastic, a plurality of contact elements made of metal, which form contact surfaces bearing against a circumferential wall of the housing, wherein the contact elements protrude on the glow-plug side from a base of the housing. The contact surfaces are embodied as segments of a circle that protrude from a strip-shaped section of the contact elements. This disclosure also relates to a connector for a cylinder pressure sensor for measuring the pressure in a combustion chamber of an internal combustion engine.

Glow plug connector

The invention relates to a pressure gauge for measuring the pressure in a combustion chamber of an engine, comprising a housing, a tappet, which is movable in the housing in an axial direction under the action of combustion chamber pressure, a sensor for detecting an axial displacement of the tappet, and a force transmitter, in order to transmit a force loading the tappet to the sensor. In accordance with the invention, the force transmitter has at least one damping section for damping flexural vibrations, at which its flexural rigidity is reduced.

Pressure gauge

A pressure measuring device includes a housing and a rod which is movable in the axial direction in the housing under the effect of combustion chamber pressure where the rod protrudes from the housing. A sensor measure combustion chamber pressure acting on the rod, and a first diaphragm is attached to the housing through which the rod extends. A second diaphragm is attached to the housing through with the rod extends between the sensor and the first diaphragm. The second diaphragm generates a return force when the rod undergoes axial displacement caused by pressure on the rod.

Dual diaphragm combustion pressure measuring device

A sensor element having a layered construction and configured to detect a physical property of a gas or a liquid includes a functional component situated in the interior, which functional component is connected electrically to a conductor element, which conductor element extends up to the outer surface or up into the surroundings of the sensor element. The sensor element has at least one sealing element which adjoins the functional component and/or the conductor element. The conductor element and the at least one sealing element are configured to be gas-tight at least regionally in the interior of the sensor element and are situated in such a way that the functional component is separated gas-tight from the surroundings of the sensor element.

Sensor element containing a sealing element for a functional component

Growing community of inventors

Leinfelden-Echterdingen, Germany

Georg Rixecker